4z-7(z+20)=85

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Solution for 4z-7(z+20)=85 equation:


4z-7(z+20)=85

We simplify the equation to the form, which is simple to understand 
4z-7(z+20)=85

Reorder the terms in parentheses
4z+(-7z-140)=85

Remove unnecessary parentheses
+4z-7z-140=+85

We move all terms containing z to the left and all other terms to the right. 
+4z-7z=+85+140

We simplify left and right side of the equation. 
-3z=+225

We divide both sides of the equation by -3 to get z. 
z=-75

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